| 提交 | 用户 | 时间 | ||
| fd2207 | 1 | package com.jcdm.common.utils; |
| 懒 | 2 | |
| 3 | import java.io.IOException; | |
| 4 | import java.io.UnsupportedEncodingException; | |
| 5 | import java.net.URLDecoder; | |
| 6 | import java.net.URLEncoder; | |
| 7 | import java.util.Collections; | |
| 8 | import java.util.HashMap; | |
| 9 | import java.util.Map; | |
| 10 | import javax.servlet.ServletRequest; | |
| 11 | import javax.servlet.http.HttpServletRequest; | |
| 12 | import javax.servlet.http.HttpServletResponse; | |
| 13 | import javax.servlet.http.HttpSession; | |
| 14 | import org.springframework.web.context.request.RequestAttributes; | |
| 15 | import org.springframework.web.context.request.RequestContextHolder; | |
| 16 | import org.springframework.web.context.request.ServletRequestAttributes; | |
| 17 | import com.jcdm.common.constant.Constants; | |
| 18 | import com.jcdm.common.core.text.Convert; | |
| 19 | ||
| 20 | /** | |
| 21 | * 客户端工具类 | |
| 22 | * | |
| 23 | * @author jc | |
| 24 | */ | |
| 25 | public class ServletUtils | |
| 26 | { | |
| 27 | /** | |
| 28 | * 获取String参数 | |
| 29 | */ | |
| 30 | public static String getParameter(String name) | |
| 31 | { | |
| 32 | return getRequest().getParameter(name); | |
| 33 | } | |
| 34 | ||
| 35 | /** | |
| 36 | * 获取String参数 | |
| 37 | */ | |
| 38 | public static String getParameter(String name, String defaultValue) | |
| 39 | { | |
| 40 | return Convert.toStr(getRequest().getParameter(name), defaultValue); | |
| 41 | } | |
| 42 | ||
| 43 | /** | |
| 44 | * 获取Integer参数 | |
| 45 | */ | |
| 46 | public static Integer getParameterToInt(String name) | |
| 47 | { | |
| 48 | return Convert.toInt(getRequest().getParameter(name)); | |
| 49 | } | |
| 50 | ||
| 51 | /** | |
| 52 | * 获取Integer参数 | |
| 53 | */ | |
| 54 | public static Integer getParameterToInt(String name, Integer defaultValue) | |
| 55 | { | |
| 56 | return Convert.toInt(getRequest().getParameter(name), defaultValue); | |
| 57 | } | |
| 58 | ||
| 59 | /** | |
| 60 | * 获取Boolean参数 | |
| 61 | */ | |
| 62 | public static Boolean getParameterToBool(String name) | |
| 63 | { | |
| 64 | return Convert.toBool(getRequest().getParameter(name)); | |
| 65 | } | |
| 66 | ||
| 67 | /** | |
| 68 | * 获取Boolean参数 | |
| 69 | */ | |
| 70 | public static Boolean getParameterToBool(String name, Boolean defaultValue) | |
| 71 | { | |
| 72 | return Convert.toBool(getRequest().getParameter(name), defaultValue); | |
| 73 | } | |
| 74 | ||
| 75 | /** | |
| 76 | * 获得所有请求参数 | |
| 77 | * | |
| 78 | * @param request 请求对象{@link ServletRequest} | |
| 79 | * @return Map | |
| 80 | */ | |
| 81 | public static Map<String, String[]> getParams(ServletRequest request) | |
| 82 | { | |
| 83 | final Map<String, String[]> map = request.getParameterMap(); | |
| 84 | return Collections.unmodifiableMap(map); | |
| 85 | } | |
| 86 | ||
| 87 | /** | |
| 88 | * 获得所有请求参数 | |
| 89 | * | |
| 90 | * @param request 请求对象{@link ServletRequest} | |
| 91 | * @return Map | |
| 92 | */ | |
| 93 | public static Map<String, String> getParamMap(ServletRequest request) | |
| 94 | { | |
| 95 | Map<String, String> params = new HashMap<>(); | |
| 96 | for (Map.Entry<String, String[]> entry : getParams(request).entrySet()) | |
| 97 | { | |
| 98 | params.put(entry.getKey(), StringUtils.join(entry.getValue(), ",")); | |
| 99 | } | |
| 100 | return params; | |
| 101 | } | |
| 102 | ||
| 103 | /** | |
| 104 | * 获取request | |
| 105 | */ | |
| 106 | public static HttpServletRequest getRequest() | |
| 107 | { | |
| 108 | return getRequestAttributes().getRequest(); | |
| 109 | } | |
| 110 | ||
| 111 | /** | |
| 112 | * 获取response | |
| 113 | */ | |
| 114 | public static HttpServletResponse getResponse() | |
| 115 | { | |
| 116 | return getRequestAttributes().getResponse(); | |
| 117 | } | |
| 118 | ||
| 119 | /** | |
| 120 | * 获取session | |
| 121 | */ | |
| 122 | public static HttpSession getSession() | |
| 123 | { | |
| 124 | return getRequest().getSession(); | |
| 125 | } | |
| 126 | ||
| 127 | public static ServletRequestAttributes getRequestAttributes() | |
| 128 | { | |
| 129 | RequestAttributes attributes = RequestContextHolder.getRequestAttributes(); | |
| 130 | return (ServletRequestAttributes) attributes; | |
| 131 | } | |
| 132 | ||
| 133 | /** | |
| 134 | * 将字符串渲染到客户端 | |
| 135 | * | |
| 136 | * @param response 渲染对象 | |
| 137 | * @param string 待渲染的字符串 | |
| 138 | */ | |
| 139 | public static void renderString(HttpServletResponse response, String string) | |
| 140 | { | |
| 141 | try | |
| 142 | { | |
| 143 | response.setStatus(200); | |
| 144 | response.setContentType("application/json"); | |
| 145 | response.setCharacterEncoding("utf-8"); | |
| 146 | response.getWriter().print(string); | |
| 147 | } | |
| 148 | catch (IOException e) | |
| 149 | { | |
| 150 | e.printStackTrace(); | |
| 151 | } | |
| 152 | } | |
| 153 | ||
| 154 | /** | |
| 155 | * 是否是Ajax异步请求 | |
| 156 | * | |
| 157 | * @param request | |
| 158 | */ | |
| 159 | public static boolean isAjaxRequest(HttpServletRequest request) | |
| 160 | { | |
| 161 | String accept = request.getHeader("accept"); | |
| 162 | if (accept != null && accept.contains("application/json")) | |
| 163 | { | |
| 164 | return true; | |
| 165 | } | |
| 166 | ||
| 167 | String xRequestedWith = request.getHeader("X-Requested-With"); | |
| 168 | if (xRequestedWith != null && xRequestedWith.contains("XMLHttpRequest")) | |
| 169 | { | |
| 170 | return true; | |
| 171 | } | |
| 172 | ||
| 173 | String uri = request.getRequestURI(); | |
| 174 | if (StringUtils.inStringIgnoreCase(uri, ".json", ".xml")) | |
| 175 | { | |
| 176 | return true; | |
| 177 | } | |
| 178 | ||
| 179 | String ajax = request.getParameter("__ajax"); | |
| 180 | return StringUtils.inStringIgnoreCase(ajax, "json", "xml"); | |
| 181 | } | |
| 182 | ||
| 183 | /** | |
| 184 | * 内容编码 | |
| 185 | * | |
| 186 | * @param str 内容 | |
| 187 | * @return 编码后的内容 | |
| 188 | */ | |
| 189 | public static String urlEncode(String str) | |
| 190 | { | |
| 191 | try | |
| 192 | { | |
| 193 | return URLEncoder.encode(str, Constants.UTF8); | |
| 194 | } | |
| 195 | catch (UnsupportedEncodingException e) | |
| 196 | { | |
| 197 | return StringUtils.EMPTY; | |
| 198 | } | |
| 199 | } | |
| 200 | ||
| 201 | /** | |
| 202 | * 内容解码 | |
| 203 | * | |
| 204 | * @param str 内容 | |
| 205 | * @return 解码后的内容 | |
| 206 | */ | |
| 207 | public static String urlDecode(String str) | |
| 208 | { | |
| 209 | try | |
| 210 | { | |
| 211 | return URLDecoder.decode(str, Constants.UTF8); | |
| 212 | } | |
| 213 | catch (UnsupportedEncodingException e) | |
| 214 | { | |
| 215 | return StringUtils.EMPTY; | |
| 216 | } | |
| 217 | } | |
| 218 | } | |
